Category: Physics

What is lines and angle? Angle. An angle is formed when two lines intersect each other. We represent an angle by the symbol ∠. An angle involves two legs and one common vertex at which two lines meet. For example: ∠AOD is formed when line AB and CD intersect with each other. Which angles are […]

What is power Doppler used for? Definition: power Doppler. An ultrasound technique that is used to obtain images that are difficult or impossible to obtain using standard color Doppler and to provide greater detail of blood flow, especially in vessels that are located inside organs. What is a Doppler device used to measure? A Doppler […]

Which is the best alternative energy source? Although there are many types of energy, the most efficient forms are renewable: hydro-thermal, tidal, wind, and solar. Solar energy has been proven to be the most efficient and effective among renewable energy sources for home and commercial use. What is the number one killer of birds? cats […]

What type of sonography pays the best? Here are the highest-paying specialties for an ultrasound technician: Vascular sonography. OB/GYN sonography. Cardiac sonography. Pediatric cardiac sonography. Neuro sonography. Is sonography a stressful job? Diagnostic medical sonographer was rated as the least stressful job. The position involves using medical imaging equipment like ultrasound machines. The second-least stressful […]

Should you cross your legs when doing pull-ups? Pull-up Mistakes: Crossed Legs Crossing your legs is also one of the pull-up mistakes. This mistake is related to pull-up mistake 3. Unknowingly, you could do this when you hang on a bar that is too low for you. You know it is too low if you […]

Is yellow lightning real? Lightning also can take on a range of colors, depending on conditions in the clouds and in the air. Yellow or orange lightning occurs when there is a large concentration of dust in the air. White lightning is a sign of low humidity or a little amount of moisture in the […]

Which planet is responsible for jealousy? Natal Pluto What planet is for money? Two most important planets which bring money (planets who rule wealth and money) are Jupiter and Venus. In astrology, these two planets are called the dhan-karakas (indicators of wealth and prosperity). Which planet is responsible for success? Planetary combinations for success, fame […]

What are characteristics of a physical change? A physical change involves a change in physical properties. Examples of physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density. What is the difference between physical and chemical process? There is […]

What is the position of Fermi energy level in a pure n type and p type semiconductor? In p-type semiconductors, the Fermi level lies above the acceptor level (but, below the intrinsic level), so that the acceptors are ionised according to the Fermi-Dirac probability function. What is the significance of Fermi level? It is important […]

Can electric fields cause cancer? Although there is no known mechanism by which non-ionizing EMFs could damage DNA and cause cancer, even a small increase in risk would be of clinical importance given how widespread exposure to these fields is. Do humans have sixth sense? You’ve probably been taught that humans have five senses: taste, […]